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Finding the Fourth Proportional to 5,145.36, 7,100.64 and 3,050.88

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Solution

The fourth proportional to 5,145.36, 7,100.64 and 3,050.88 is: 4,210.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.36 : 7,100.64 = 3,050.88 : x
  2. Step 2: Convert to fraction form
    5,145.36/7,100.64 = 3,050.88/x
  3. Step 3: Cross multiply
    5,145.36x = 7,100.64 × 3,050.88
  4. Step 4: Simplify right side
    5,145.36x = 21,663,200.56
  5. Step 5: Solve for x
    x = 21,663,200.56/5,145.36
  6. Step 6: Final answer
    x = 4,210.24

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.